General Definition: A crown is a dental restoration that completely covers or surrounds a tooth or dental implant and it is typically fixed to the tooth using traditional dental cement. Crowns can be made out of numerous materials, which are usually fabricated using out-of-mouth method. Crowns are frequently used to improve strength or appearance of teeth. Full-porcelain (ceramic) dental materials include porcelain, ceramic or glass screen fillings and crowns (aka jacket crown, a metal free option).
Two medicines that do not contain nicotine have FDAâs approval as smoking cessation products. They are Chantix (varenicline tartrate) and Zyban (buproprion hydrochloride). Both are available in tablet form on a prescription-only basis.
Nicotine is a bitter-tasting compound that naturally occurs in large amounts in the leaves of tobacco plants. Nicotine poisoning results from too much nicotine. Acute nicotine poisoning usually occurs in young children who accidentally chew on nicotine gum or patches. This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such as 911) or a local poison control center at 1-800-222-1222. See All Â» News & Features.